Art of heading nails



(No Model.)

G. W. COPELAND.

ART OF HEADING NAILS, TASKS, 820.

No. 383,043. Patented May 15, 1888.

UNITED STATES PATENT EEcE.

GEORGE W. COPELAND, OF MALDEN, MASSACHUSETTS.

ART OF HEADING NAILS. TACKS, &.o.

SPECIFICATION forming part of Letters Patent No. 383,043, dated May 15,1888.

Application filed February 8, 1888. Serial No. 263,361. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE WV. COPELAND, of Malden, in the county ofMiddlesex and Commonwealth of Massachusetts, a citizen of the UnitedStates, have invented a new and useful Improvement in the Art of HeadingNails, Tacks, &c., of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart of the specification in 'explaia ing its nature.

The object of my invention is to provide a simple and rapid method ofheading'or upsetting nails, tacks, &c., either hot or cold.

In the accompanying drawings, I have particularly shown a method ofapplying my invention to heading striptacks, in which- Figure l is aperspective view showing the parts necessary for practicing my method.Figs. 2, 3, and 4 illustrate the different steps in this method. Fig. 5shows a series of striptacks headed. Fig. 6 shows a view of a singlenail, to which my method is applied.

Adopting the striptack as the article which I usefor the purposeofillnstrating my method, I proceed as follows: The striptaoks, unitedas indicated in Fig. 5, are placed within the gripping-jaws A A, and fedalong by the feed ing mechanism F G into the field of action of thetools D and C in the tool-holder B. The first step in the method is toincline that part of the metal to be used in forming the head E, Fig. 3,by pressing or forcing it over, as indicated in Fig. 3, the work beingdone by the tool D, which is caused to move in the direction of thearrow, Fig. 3. This bending of the head metal having been accomplished,a second tool-the roller C-moves in the direction of the arrow, Fig. 4,and forces downward the head metal, and afterward by its continuedmovement causes the head metal or a part of the head metal to flow overto the right and thus complete the head, as shown in Figs. 4. and 5.

In Fig. 2 I have shown the position of the tools D and C in relation tothe article to be headed and before the work begins.

In the illustrations I have simply shown one set of working parts, andhave not shown any mechanism for moving said parts, as I do not wish toconfine myself to any particular mechanism, for my invention is inreality an art that may be practiced by the use of a great manywell-known mechanical devices-for instance, the toolcarrier B may beomitted and two carriers put in its place, one for each tool, andinstead of the tool D a roller on a swinging lever could be used.

What I claim as new, and desire to secure by Letters Patent, is

That improvement in the art of heading nails or tacks which consists intaking a blank or strip of metal, clamping it rigidly, bending the edgeor top portion at an angle, and then bending or swaging the end andparts near the end of said bent portion back upon itself, substantiallyas described.

GEO. WV. COPELAND.

Witnesses:

M. A. BALLINGER, J. H. GRAY.

